支持Excel导出对象的多个子列表
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Hsy
@@ -21,6 +21,7 @@ import org.apache.commons.lang3.RegExUtils;
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import org.apache.commons.lang3.reflect.FieldUtils;
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import org.apache.poi.hssf.usermodel.*;
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import org.apache.poi.ooxml.POIXMLDocumentPart;
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import org.apache.poi.ss.formula.functions.T;
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import org.apache.poi.ss.usermodel.*;
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import org.apache.poi.ss.util.CellRangeAddress;
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import org.apache.poi.ss.util.CellRangeAddressList;
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@@ -129,12 +130,12 @@ public class ExcelUtil<T> {
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/**
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* 对象的子列表方法
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*/
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private Method subMethod;
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private Map<String, Method> subMethods = new HashMap<>();
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/**
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* 对象的子列表属性
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*/
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private List<Field> subFields;
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private Map<String, List<Field>> subFieldsMap = new HashMap<>();
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/**
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* 统计列表
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@@ -199,7 +200,7 @@ public class ExcelUtil<T> {
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if (StringUtils.isNotEmpty(title)) {
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int titleLastCol = this.fields.size() - 1;
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if (isSubList()) {
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titleLastCol = titleLastCol + subFields.size() - 1;
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titleLastCol = titleLastCol + subFieldsMap.values().size() - 1;
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}
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Row titleRow = sheet.createRow(rownum == 0 ? rownum++ : 0);
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titleRow.setHeightInPoints(30);
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@@ -217,14 +218,15 @@ public class ExcelUtil<T> {
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if (isSubList()) {
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Row subRow = sheet.createRow(rownum);
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int column = 0;
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int subFieldSize = subFields != null ? subFields.size() : 0;
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for (Object[] objects : fields) {
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Field field = (Field) objects[0];
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Excel attr = (Excel) objects[1];
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CellStyle cellStyle = styles.get(StringUtils.format("header_{}_{}", attr.headerColor(), attr.headerBackgroundColor()));
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if (Collection.class.isAssignableFrom(field.getType())) {
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Cell cell = subRow.createCell(column);
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cell.setCellValue(attr.name());
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cell.setCellStyle(styles.get(StringUtils.format("header_{}_{}", attr.headerColor(), attr.headerBackgroundColor())));
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cell.setCellStyle(cellStyle);
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int subFieldSize = subFieldsMap != null ? subFieldsMap.get(field.getName()).size() : 0;
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if (subFieldSize > 1) {
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CellRangeAddress cellAddress = new CellRangeAddress(rownum, rownum, column, column + subFieldSize - 1);
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sheet.addMergedRegion(cellAddress);
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@@ -233,7 +235,7 @@ public class ExcelUtil<T> {
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} else {
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Cell cell = subRow.createCell(column++);
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cell.setCellValue(attr.name());
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cell.setCellStyle(styles.get(StringUtils.format("header_{}_{}", attr.headerColor(), attr.headerBackgroundColor())));
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cell.setCellStyle(cellStyle);
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}
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}
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rownum++;
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@@ -301,13 +303,14 @@ public class ExcelUtil<T> {
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Map<String, Integer> cellMap = new HashMap<String, Integer>();
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// 获取表头
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Row heard = sheet.getRow(titleNum);
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for (int i = 0; i < heard.getPhysicalNumberOfCells(); i++) {
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if (heard == null) {
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throw new UtilException("文件标题行为空，请检查Excel文件格式");
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}
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for (int i = 0; i < heard.getLastCellNum(); i++) {
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Cell cell = heard.getCell(i);
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if (StringUtils.isNotNull(cell)) {
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String value = this.getCellValue(heard, i).toString();
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cellMap.put(value, i);
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} else {
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cellMap.put(null, i);
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}
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}
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// 有数据时才处理 得到类的所有field.
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@@ -556,7 +559,8 @@ public class ExcelUtil<T> {
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Field field = (Field) os[0];
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Excel excel = (Excel) os[1];
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if (Collection.class.isAssignableFrom(field.getType())) {
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for (Field subField : subFields) {
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List<Field> currentSubFields = subFieldsMap.get(field.getName());
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for (Field subField : currentSubFields) {
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Excel subExcel = subField.getAnnotation(Excel.class);
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this.createHeadCell(subExcel, row, column++);
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}
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@@ -565,7 +569,7 @@ public class ExcelUtil<T> {
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}
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}
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if (Type.EXPORT.equals(type)) {
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fillExcelData(index, row);
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fillExcelData(index);
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addStatisticsRow();
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}
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}
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@@ -578,13 +582,13 @@ public class ExcelUtil<T> {
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* @param row 单元格行
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*/
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@SuppressWarnings("unchecked")
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public void fillExcelData(int index, Row row) {
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public void fillExcelData(int index) {
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int startNo = index * sheetSize;
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int endNo = Math.min(startNo + sheetSize, list.size());
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int currentRowNum = rownum + 1; // 从标题行后开始
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for (int i = startNo; i < endNo; i++) {
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row = sheet.createRow(currentRowNum);
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Row row = sheet.createRow(currentRowNum);
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T vo = (T) list.get(i);
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int column = 0;
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int maxSubListSize = getCurrentMaxSubListSize(vo);
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@@ -596,6 +600,7 @@ public class ExcelUtil<T> {
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Collection<?> subList = (Collection<?>) getTargetValue(vo, field, excel);
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if (subList != null && !subList.isEmpty()) {
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int subIndex = 0;
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List<Field> currentSubFields = subFieldsMap.get(field.getName());
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for (Object subVo : subList) {
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Row subRow = sheet.getRow(currentRowNum + subIndex);
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if (subRow == null) {
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@@ -603,13 +608,13 @@ public class ExcelUtil<T> {
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}
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int subColumn = column;
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for (Field subField : subFields) {
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for (Field subField : currentSubFields) {
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Excel subExcel = subField.getAnnotation(Excel.class);
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addCell(subExcel, subRow, (T) subVo, subField, subColumn++);
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}
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subIndex++;
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}
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column += subFields.size();
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column += currentSubFields.size();
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}
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} catch (Exception e) {
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log.error("填充集合数据失败", e);
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@@ -920,7 +925,7 @@ public class ExcelUtil<T> {
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if (attr.isExport()) {
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// 创建cell
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cell = row.createCell(column);
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if (isSubListValue(vo) && getListCellValue(vo).size() > 1 && attr.needMerge()) {
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if (isSubListValue(vo) && getListCellValue(vo) > 1 && attr.needMerge()) {
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if (subMergedLastRowNum >= subMergedFirstRowNum) {
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sheet.addMergedRegion(new CellRangeAddress(subMergedFirstRowNum, subMergedLastRowNum, column, column));
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}
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@@ -1303,10 +1308,10 @@ public class ExcelUtil<T> {
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fields.add(new Object[]{field, attr});
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}
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if (Collection.class.isAssignableFrom(field.getType())) {
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subMethod = getSubMethod(field.getName(), clazz);
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String fieldName = field.getName();
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ParameterizedType pt = (ParameterizedType) field.getGenericType();
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Class<?> subClass = (Class<?>) pt.getActualTypeArguments()[0];
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this.subFields = FieldUtils.getFieldsListWithAnnotation(subClass, Excel.class);
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subFieldsMap.put(fieldName, FieldUtils.getFieldsListWithAnnotation(subClass, Excel.class));
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}
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}
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@@ -1505,27 +1510,33 @@ public class ExcelUtil<T> {
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* 是否有对象的子列表
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*/
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public boolean isSubList() {
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return StringUtils.isNotNull(subFields) && subFields.size() > 0;
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return !StringUtils.isEmpty(subFieldsMap);
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}
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/**
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* 是否有对象的子列表，集合不为空
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*/
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public boolean isSubListValue(T vo) {
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return StringUtils.isNotNull(subFields) && subFields.size() > 0 && StringUtils.isNotNull(getListCellValue(vo)) && getListCellValue(vo).size() > 0;
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return !StringUtils.isEmpty(subFieldsMap) && getListCellValue(vo) > 0;
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}
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/**
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* 获取集合的值
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*/
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public Collection<?> getListCellValue(Object obj) {
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Object value;
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public int getListCellValue(Object obj) {
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Collection<?> value;
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int max = 0;
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try {
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value = subMethod.invoke(obj, new Object[]{});
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} catch (Exception e) {
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return new ArrayList<Object>();
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for (String s : subMethods.keySet()) {
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value = (Collection<?>) subMethods.get(s).invoke(obj);
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if (value.size() > max) {
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max = value.size();
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}
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return (Collection<?>) value;
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}
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} catch (Exception e) {
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return 0;
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}
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return max;
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}
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/**
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